Hi does anyone know how to use the streaming API for C#? Therefore, whenever there is a new tweet in my account, it will be reflected in my program.
So far the only reliable wrapper I've found for this in .Net land is TweetInvi. Try to ignore that the web site looks like it was designed by a hyperactive 10-year old (thanks MS 'metro' team), the actual library is very well designed and rock solid.
Assuming of course you have the relevant access tokens (if not see http://dev.twitter.com), an example of how easy it is to have up and running:
TwitterCredentials.SetCredentials(userToken,userTokenPrivate,apiKey,apiKeyPrivate);
_userStream = Stream.CreateUserStream();
_userStream.TweetCreatedByFriend += (sender,args) => Console.WriteLine(args.Tweet.Text);
_userStream.Start();
This will write the body of tweets to your console output, and it updates even faster than leaving the actual Twitter web site open. There are other events exposed for when a tweet is favourited, retweeted, when you have a new follower etc.
I can vouch for this library as being reliable - I am using it for my CovertTweeter project and have had absolutely no issues with it. In fact accessing the streaming API through TweetInvi has been even easier than the many brick walls I was left hitting when using REST wrappers like Linq2Twitter and TweetSharp.
Have a look at this post:
Streaming with New .NET HttpClient and HttpCompletionOption.ResponseHeadersRead
You don't have the complete implementation there but you will get the idea.
Here is a sample which "Reads data from the Twitter Streaming API and adds it to MSMQ. A second process (included) reads from the queue, parses the json message, and updates a data store."
https://github.com/swhitley/TwitterStreamClient
You can change the above problem to generate an event when it updates the data store. In your program you can subscribe this event to do whatever you want.
If you are looking for OAuth based sample then please use "AuthPack" which Provides .NET oAuth for Twitter, Facebook, LinkedIn, and Google:
https://github.com/swhitley/AuthPack/tree/master/AuthPack
I have found a good sample code that uses streaming API, here Twitterizer.
Related
Morning all,
I've not posted on SO for quite some time, but I need to ask the question, I’ve spent a day and a half trying to get this to work - it’s super frustrating considering I managed to implement v2 with posting a tweet in 2 - 3 hours but because I need the media endpoint (does not exist in v2), I rebuilt my flow into v1 to upload media.
Ok, so my app allows the user to authenticate with twitter and tweet/upload media. I’m using (I think) the 3-legged oauth flow.
Currently, the flow is :
https://api.twitter.com/oauth/request_token - 200 status code and I
confirm the callback URL
I use the access token from step 1, and then call/redirect
https://api.twitter.com/oauth/authorize?oauth_token={accessToken}
this obviously redirects to my endpoint.
I extract the oauthToken and oauthVerifier and call:
https://api.twitter.com/oauth/access_token, this returns an
oauthToken and oauthTokenSecret, I store the values.
All of the above conforms to what is in the docs, but when I use the stored values from step 3 to post a tweet I get unauthorized.
The signing logic works because it’s what’s used in “Request access token” - with a couple of changes.
I'm learning more towards a flow issue due to trying various nuget packages(tweetinvi in particular) and I get exceptions in those too.
Any help is greatly appreciated.
Not really an answer per-se, but rather notable actions.
At this point in time, you cannot upload media with V2 of the API, whilst you can integrate quite quickly and send a tweet, it's almost pointless without media.
So, you'll need to build/integrate with V1.
The unknowns and curve balls:
The most important! V1 requires elevated access! Which you'll need to
apply for, not all get accepted! but V2 just integrate and tweet with
no elevated access - very strange.
Always ensure to read the resp correctly, and try few times in code, postman,
fiddler etc. Whilst the resp contains a collection of errors object,
you'll never get a collection of errors.
If you're not using any sort of package/library, pay close attention
to crafting the request signature - it's a pain.
I am new to StackOverflow, struggling to find a solution to my problem: I am trying to synchornize my asp.net app with the calendly api.
So far, I have managed to create a webhook subscription and I saw that the webhooks are being registered to https://calendly.com/api/v1/hooks/ and I was able to acces a specific webhook using its id (I used Postman to see all this, as I am currently local developing). I am having a lot of trouble since I am not able to understand what call should I make in order to get the webhooks and be able to use their data in my app.
https://developer.calendly.com/docs/sample-webhook-data
This is what I should be parsing, according to Calendly documentation.
I want to get data such as the emails of those participing into the event, also the date and status of the event. How can I do this?
From your question, it seems to me there might be a lack of conceptual understanding of what webhooks are.
As you mention, you had already subscribed to be notified if some event happens in Calendly (I assume invitee.created event).
This means, that
when this event actually happens on Calendly (you may need to make a test scheduling request in the Calendly UI), the notification about this event is sent to the URL you had registered (subscribed).
This registered URL has to be reachable for the notification call. In other words, if the URL is in your local environment (and you mentioned it is so), it's impossible for the notification to reach the registered (subscribed) destination. So this might be the issue you're experiencing.
You need to read incoming raw data. In my script, with PHP, I do it using file_get_contents('php://input')
You need to parse the data. With PHP I use json_decode($inputData). In your language you've got to use whatever tools you have for JSON parsing.
Basically, that's it. In my case, I read invitee email using $parsedData->payload->invitee->email.
Hope it helps.
Long shot, but I'd like to fiddle with ViaGogo API (C# library more precisely). ViaGogo has a well documented public API, documentation is avaliable here.
Problem is, you need to authenticated as it usually happens with this kind of APIs: usually, you find a section of the website, maybe in your profile section, where you can obtain keys, secrets and so on (this happens for example on Facebook or Amazon).
As for ViaGogo, I only found a link that points to a Google Form: this form asks for info about advertising and affiliation on a complete different level of what I need, I won't publish anything read via API. Furthermore, there's no field to leave an e-mail address.
Their C# library seems pretty popular as far as I can tell from downloads from NuGet; I wonder how all these thousands of devs succesfully called that API.
Has anyone succesfully obtained authentication info from ViaGogo?
According to note in registration form, you have to wait for 30 days for their reply.
For more help you can contact them on following contacts:
E-mail: affiliate#viagogo.com
Telephone: +442075532777
Or
http://www.viagogo.com/in/help
There doesn't seem to be any way around this registration according to their website and the api itself -- an appID and password is required. You may try your luck emailing them at Affiliate.Team#viagogo.com -- see this issue on github where the possibility of getting an account via email is discussed: https://github.com/viagogo/developer.viagogo.net/issues/24
With Twitter's new OAuth interface, their API is now many times more complex than what it was. And I haven't even looked at Facebook's API yet.
What I'm wondering if there is a method that employs some higher-level, existing code or interfaces to make this a simpler task.
All I want to be able to do is initiate a Twitter tweet or Facebook share on the user's behalf and be able to control the initial text of those messages, from an ASP.NET application.
I found some similar questions on SO, but they had no answers.
EDIT: I know there are things like AddThis and ShareThis, but I need something that will give me control over the default message. It must contain a link with a code that is specific to the current user.
Twitter Integration...
For making Tweets from an ASP.NET application on users' behalf, check out Twitterizer. It's a free, open-source project for integrating with Twitter from .NET applications.
I agree that using OAuth can be a bit daunting, but the Twitterizer API wraps up most of the complexity. I've written an article on using Twitterizer in an ASP.NET application that you may be interested in: Integrating Twitter Into An ASP.NET Website Using OAuth. After reading the article, download the code sample at the end, which is a working demo showing how to use Twitterizer to post a tweet from an ASP.NET website.
Facebook Integration...
For integrating with Facebook, chcek out the Facebook Developer Toolkit. Like Twitterizer, it's an open-source, free API and should get you going in the right direction.
Happy Programming!
After looking around for a while, I found sharethis.com. They have various share buttons you can add to your site that send Twitter tweets, Facebook shares, etc.
It looks like it also supports options to control the URL, so I could modify this to include whatever URL I need.
I haven't yet figured out if I can control the default message text. I'm looking into that.
But it seems like this is probably the simplest way to accomplish what I want.
This is probably what you're after for twitter: https://twitter.com/about/resources/buttons#tweet
Let's you configure a button (or URL to redirect to) that starts the user off with some default text. The user can change the text before they post.
Don't know about facebook.
Twitter Integration:
Check this code and link/article simple and easy :
protected void btnTweet_Click(object sender, EventArgs e)
{
string oauthAccessToken = Session["twtoken"].ToString();
string oauthAccessTokenSecret = Session["twsecret"].ToString();
OAuthHelper oauthhelper = new OAuthHelper();
oauthhelper.TweetOnBehalfOf(oauthAccessToken, oauthAccessTokenSecret, txtTweet.Text);
if (string.IsNullOrEmpty(oauthhelper.oauth_error))
Response.Write("Twit Posted Successfully");
else
Response.Write(oauthhelper.oauth_error);
}
Read more how to get access token and secret key and download OAuthHelper and OAuthUtility Class below is the link -
How to post tweet on behalf of an user from asp.net using oauth authentication
Login with twitter using oauth authentication in asp.net and get access token, screen name and userid
As of August 15, Amazon made it compulsory to sign all requests made to their Product Advertising API. I thought I had got everything working just fine but when the 15th finally came around, my web application stopped working and pretty much ever since I have been trying to find out how to sign the SOAP requests.
Amazon has an outdated sample code for signing requests that doesn't appear to work here
Basically, I need to know how to add a signature to the my requests using the most current C# SOAP API and .NET 3.5.
I hope I have given enough details, if I haven't please feel free to ask me to elaborate.
Thank You
The_Lorax
UPDATE:
I am using MVC and need to know how to add the Signature to the the ItemLookup or AWSECommerceService object. Is there an attribute that contains the signature value? How does it get attached to the request?
On this page, they say that I must include the Signature and TimeStamp parameters but the intellisense does now show any such attributes.
Check out http://flyingpies.wordpress.com/2009/08/01/17/. It has a walkthrough and a sample visual studio solution using C#, SOAP, WCF on .NET 3.5.
This library automatic sign the requests (Install-Package Nager.AmazonProductAdvertising)
https://www.nuget.org/packages/Nager.AmazonProductAdvertising/
Example:
var authentication = new AmazonAuthentication("accesskey", "secretkey");
var client = new AmazonProductAdvertisingClient(authentication, AmazonEndpoint.US);
var result = await client.SearchItemsAsync("canon eos");